Questions

Q:

Length of three line segments isgiven. Is construction of a triangle possible with the segments in the given cases?

A) 8 cm, 7 cm, 18 cm B) 8 cm, 15 cm, 17 cm
C) 10 cm, 6 cm, 4 cm D) 8 cm, 10 cm, 20 cm
 
Answer & Explanation Answer: B) 8 cm, 15 cm, 17 cm

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Q:

Two circles touch each other internally. The radius of the larger circle is 6 cm and the distance between the centre is 2 cm, then the radius (in cms) of the other circle is

A) 8 B) 2
C) 4 D) 3
 
Answer & Explanation Answer: C) 4

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Q:

If sin 30° + cos 45° = X, then the value of X.

A) (2√2-√3)/2 B) 4/√3
C) (1-√3)/√3 D) (1+√2)/2
 
Answer & Explanation Answer: D) (1+√2)/2

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Q:

Identify the positive impact of internet in life.

A) Cyber-crimes are on the increase B) Users suffer from internet addiction disorder
C) Best source of knowledge through a click D) Leads to less physical activity and poor eye sight
 
Answer & Explanation Answer: C) Best source of knowledge through a click

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Filed Under: Computer
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Q:

For what is Radiocarbon dating technique used?

A) To estimate soil contamination B) To estimate the amount of water in fossils
C) To estimate the age of fossils D) To estimate the quality of soil
 
Answer & Explanation Answer: C) To estimate the age of fossils

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Filed Under: Physics
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Q:

Calculate the work done by the force of gravity when a satellite moves in an orbit of radius 40,000 km around the earth.

A) 8,000 J B) 4,00,000 J
C) 0 J D) 4,000 J
 
Answer & Explanation Answer: C) 0 J

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Filed Under: Physics
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Q:

In which direction does the tail of a comet point toward?

A) Away from the sun B) Towards the sun
C) Away from earth D) Towards the earth
 
Answer & Explanation Answer: A) Away from the sun

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Filed Under: General Science
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Q:

Accumulation of which one of the following in the leads to cramp?

A) Lactic acid B) Ethanol
C) Pyruvic acid D) Glucose
 
Answer & Explanation Answer: A) Lactic acid

Explanation:

Muscle cramping is a common problem encountered by athletes and non athletes alike. Defined as painful involuntary skeletal muscle contractions, cramps may be categorized as either non exercise related or exercise related. Traditionally, such cramping was believed to arise from dehydration, electrolyte imbalances (including magnesium, potassium and sodium),accumulation of lactic acid, or low cellular energy levels.

 

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Filed Under: Biology
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